RNG manip for Black mark/Ability 1 chen
Wild Chen: Yin Energy (陰の気力) x3
Marisa: Yang Energy (YE/陽の気力) x3
Get Hakurei Shinshu (HS/博麗の神酒) behind shrine if marisa's drop was bad
YEx3, YEx3 before shop
PC heal, sell all cash items and 8 Seal Thread/封印の糸 (also sell HS if no 1500 item)
Buy 4 Rosary Beads/数珠, 7 Fuji Rice Cookie (FRC/藤原煎餅), 4 Rice Dumpling (RD/白玉団子)
Skip both early trainers (must go on far left tile to be out of vision range of Aki sisters spinner)
Get Jade Hairpin/翡翠色の髪飾り from convenience store (4th row on the left)
Menu for learninng Night Wind (NW/小夜嵐) over blank slot and equip hairpin to Chen

GRASS MANIP
1/right: Kokoro Lv7 NW (13/16 range)
seed = 1440028496 ts = 0 slot = 58 lsub = 0 abil = 0 encCycle = 0 ivs = [3, 2, 2, 4, 2, 13]
Thu Aug 20 2015 11:54:56 GMT+12:00
2/right: Kokoro Lv7 NW (guaranteed)
seed = 1440578603 ts = 0 slot = 59 lsub = 0 abil = 0 encCycle = 0 ivs = [0, 5, 12, 15, 0, 10]
Wed Aug 26 2015 20:43:23 GMT+12:00
3/right: Kokoro Lv7 NW
seed = 1440102021 ts = 0 slot = 59 lsub = 0 abil = 0 encCycle = 0 ivs = [2, 10, 15, 8, 0, 4]
Fri Aug 21 2015 08:20:21 GMT+12:00
4/right: Kokoro Lv7 NW
same seed as 3/right WutFace 
5/right: Kokoro Lv7 NW
same seed as 3 and 4 Kreygasm
6/turn left+left: Kokoro Lv7 NW
seed = 1440004229 ts = 0 slot = 58 lsub = 0 abil = 0 encCycle = 0 ivs = [0, 11, 1, 5, 1, 4]
Thu Aug 20 2015 05:10:29 GMT+12:00
7/left: Akyuu Lv6 Seal+NW
seed = 1003978819 ts = 0 slot = 53 lsub = 1 abil = 1 encCycle = 0 ivs = [0, 15, 11, 2, 0, 14]
Thu Oct 25 2001 15:00:19 GMT+12:00
8/2 left: Keine Lv5 Seal+YEx2
seed = 1048979034 ts = 0 slot = 9 lsub = 2 abil = 1 encCycle = 1 ivs = [15, 15, 15, 11, 0, 11]
Sun Mar 30 2003 11:03:54 GMT+12:00

Once done with grind heal to 25+ (safety: full)
Cirno: YE+NW (Dark Ball does 9-12 / abyssal 13-18) | NWx2 (Frost Edge does 12-15 + stop)
Heal to 19+
Dai: NWx2 (8-10 + stop) | NWx2 (8-10)
Heal to 22+
Wriggle: NWx2 (5-7) | NWx2 (13-16)
Invest max Sp.Atk (31) after Wriggle
Mystia: NW | NW
Rumia: NW (range, 9-12+stop) | NW | NWx2 (7-9) | NW (range, 10-13) | YE+NW (16-19)
Use RD
Reimu: NW (outsped 10-13) | Reinforce Barrier (障壁強化) + NW (7-9) | NW + RD + NWx2 (16-19 per turn) (straight up NWx2 if first NW crits)
Use RD and invest 2 FoDef, 2 SpDef then the rest into SpAtk
Ruukoto: YEx2-3 (95%ish 2shot) (18-24 per turn)
FRC if at 21 or lower
Sukuna: YEx2 (18-24 + high crit)
NW everything until Kurumi trainer is down (second Kurumi is a 12/16 range)
When you reach forest grass, use Rosary Beads
When you beat Kurumi trainer, MENU
Swap Keine to lead, learn Hammer Throw (HT/ハンマー投げ), 59 Fo.Atk on Keine, max Sp.Atk on Chen
Yuuka: HTx2
Chen back to lead, NW everything until Kagerou is down (Wakasagi takes 2, Sekibanki is a range)
Skip Seija trainer
Heal to full (FRC preferred), learn Wind Wave (WW/ウィンドウェイブ) over Reinforce Barrier
Youmus: WW[+YE] | WW[+YE] (18-24 per turn priority, heal if at 21 or below and fight is not over)
Mamizou: NW
PC heal, sell all cash items, buy 21 Talismans/護符, 1 RD if none left, 1-2 Myouren Tea (MT/命蓮茶), max Chirei Bun (CB/地霊饅頭)
Forest trainer: NW | WW
Kill any one forest encounter (WW Udonge, NW anything else)
Tewi: NW | WW[+NW] (16-19) | WW (prank & priority 9-12)
Heal (RD) only if you missed or missed range on Udonge AND second Tewi
Reisen: NW | NWx2 (19-24)
Use 3 Prismatic Candy (PC/七色の飴) to Lv30 on Chen
Change to Assist form, Learn Avalanche (AV/山崩れ) over blank slot, Put Akyuu up front
Mokou1: Switch to Chen + AV (11-14+confusion) | NW | AV
Marisa: Switch to Chen + AV (33-42) | NWx2 (25-30+status) | AV
Para - CB+MT in fight immediately, Fear - Ignore in fight then MT after fight, Darkness - Ignore completely
CB after fight regardless
Kaguya: Switch to Chen + NW (13-16 or prank if high SpDef Akyuu) | WW | NW | WW+NW (17-20 + status)
Ignore status until after fight unless it is Para and Kaguya can kill you in one more hit. MT it away after if Para/Fear. Heal only if below 14 (requires Prank+status troll) (use lowest healing item avail. unless it is RD and you only have 1)
Mokou2: Switch to Chen + AV (11-14+confusion) | NW | NW
Bike to trainer near Clearing Mist, Switch Chen back to lead, start Talismans after
Trainer near Clearing Mist: YE | YE
Koakuma: NW | NW | NW
Patch: AV | WW
Take bed before Sakuya if low on healing items (how many?)
Sakuya: NW | NW(bed)/CB(no bed) (22-26 from boom) | AV (33-39 priority)
CB on Chen, Change Akyuu to Assist, Learn Clearing Mist (CM/霞払い) Skill Card and St Elmo's Fire (SEF/セントエルモの火) levelup skill over your two current moves
Invest max Fo.Atk on Akyuu and max Speed (62) on Chen
Remi: NW, switch to Keine and CB Chen, AV (orange HP) or WW (green HP) (76-90 priority each turn) | CB + NWx2 (49-58 first turn then 39-46 thereafter) | Swap to Akyuu and CM
PC heal, leave SDM
Trainers before Fairies: AV the first two Nitoris (Lv27+29 but not 2nd 27), YE the Nazrin+Rumia trainer, NW everything else
Fast Fairies: NW | WW flinch+NW | WW | NW | NW | AV
Slow Fairies: NW | WW non-flinch, die, send out Akyuu, revive Chen (Moriya Shinshu/守矢の神酒), CM, swap to Chen, NW | NW | NW | NW | AV
Heal before Ray-moo if slow fairies, don't bother if fast
Reimu: NW | WW+NW (46-55) | WW+die+send out Keine+HT or WW[+YE] (WW is 3/16 range + 30% flinch) (69-82)
Momiji: NW | AV | AV
Learn Godspeed Air Raid (GSAR/神速エアレイド) over WW and Raid (急襲) over YE, heal to full if not already
Trainers before Sanae: GSAR everything
Sanae: GSARx2  | GSAR | GSAR + die + Keine revive + GSAR or GSARx2 (flinch) or NW+GSAR (if not damaged by lead Reimu)
Damage on Sanae depends on fast/slow Reimu.
Switch Keine to the lead and change her to Defense style and make sure her ability is Were-Hakutaku (first ability; contains HP in its description)
Kanako: HT+die+send out Chen+GSAR | GSAR+die+send out Akyuu+SEFx1+ (2 is average w/o Moody FoDef boosts/drops) or GSARx2 (flinch + no Speed increase from Moody) | Send out Akyuu if not already out, CMx2
Use 1 RD on Keine, give Chen the Combat Handbook (戦闘の教範) and put Chen back to lead
Momiji trainer: Raid+NW | AV
Mystia trainer: Swap to Keine+HT | HT | HT
Kogasa trainer: GSAR | AV | AV
Cirno trainer: GSAR
Rika trainer: AV
PC heal, sell cash items to 20k+, buy 31 Magatama/勾玉 and max Paste of the Fog/霧の水羊羹
Three Fairies trainer: GSAR | GSAR | AV
Use Magatama at the grass in Mayohiga
Chiyuri trainer: AV
Unnamed cave trainers: AV Tojikos, GSAR solo Parsee & Seija (inputs), NW everything else
Yamame: NW | NW (priority + poison chance) | NW
If poisoned: MT if you still have one, otherwise use Ecstasy Set (有頂天セット) and remember that you used it
Parsee: GSAR | GSARx2
Yuugi: NW | NW | NW
Unnamed trainers before Satori: AV Tojikos, GSAR solo Kasen, NW everything else
Heal to full before Satori
Satori: GSAR | GSARx2 (31-37 + spdef drop) | GSAR | GSARx2 (72-87, 107-130 at -1)
Utsuho: GSAR | GSAR | GSAR
Take bed, take Ecstasy Set if you used it already
Luna: GSAR | GSAR | AV
Sunny: GSARx2 | AV | GSAR
Cirno: GSAR | GSAR
Rumia: GSAR (range) | GSAR (use GSAR+NW | NW if range missed)
Medi1: GSAR | GSAR | GSAR | GSAR
Orange trainer: GSAR | GSAR | GSAR
Use 6 PC to 70 if on low EXP curve, learn moves: Waves of Earth (Waves/土石の荒波) over GSAR, Brave Song (BS/ブレイブソング) over Raid, relearn GSAR over NW
Sakuya trainer: AV | AV
Use 5 PC to 70 if on high EXP curve, learn same moves as above
Medi2: AV | GSAR | BS+AV | GSAR | GSAR
Benben trainer: AV | AV
Elly trainer: AV | GSAR
Komachi trainer: Waves (range) | GSAR
Heal to full before Yuuka
Yuuka: BSx2 + GSAR (68-82 per turn) | GSAR | AV
Get candy then heal to full again and gap to Myouren
Kyouko: GSAR | GSAR | Waves
Murasa: BS+Waves | GSAR
Ichirin: GSAR
Shou: Waves | Waves | Waves
Nazrin: Waves | Waves
Byakuren: GSARx2 | Waves | Waves | GSAR
Use 2 PC to 80 if on low EXP curve, gap to Hakurei Shrine regardless, take bed
Marisa: Waves | Waves | Waves | GSAR+AV
Heal only if crit by Marisa
Reimu: GSAR | BS+Waves | Waves | GSAR
Heal to full regardless
Seiga trainer: GSAR
Konngara trainer: GSAR (priority)
Yukari trainer: GSARx2
Use 2 PC to 83 if on high EXP curve
Heal if crit by Konngara or Yukari
GGMG: BS+GSAR | Waves | Waves | Waves
Sara: AV | GSAR | Waves
Equip Jade Hairpin to Chen, take PC heal in Makai
Yuki: GSAR | GSAR | GSAR | AV | GSAR
Mai: Waves | Waves | BS+GSARx2 | GSAR | AV
If burnt, Ecstasy Set and follow Yumeko1. If not burnt but hit twice and/or crit, follow Yumeko2 without healing. Otherwise follow Yumeko1 without healing. If you feel like playing it safe, just follow Yumeko2 no matter what.
Yumeko1: BS+GSAR | AV | GSAR | GSAR | AV
Yumeko2: Waves | BS+AV | GSAR | GSAR | AV
Heal regardless before Shinki
Shinki: Waves | BS+GSAR | Waves | Waves | Waves | GSAR+die, send out Akyuu, SEFx1-2 (or GSARx2 if flinch)
If Hijiri misses on the BS turn, BS again to 1hit Shinki.
If you miss the 1-turn range on Shinki with SEF and she breaks through confusion and kills you, fodder Keine to revive Chen