See comment #2277949

I tried my best, but I don't think I have all characters.
There's 12 columns and 11 rows

01 hakurei_reimu kirisame_marisa rumia daiyousei cirno hong_meiling koakuma patchouli_knowledge izayoi_sakuya remilia_scarlet flandre_scarlet letty_whiterock
02 chen alice_margatroid lily_white lunasa_prismriver merlin_prismriver lyrica_prismriver konpaku_youmu saigyouji_yuyuko yakumo_yukari yakumo_ran wriggle_nightbug mystia_lorelei
03 kamishirasawa_keine inaba_tewi reisen_udongein_inaba yagokoro_eirin houraisan_kaguya fujiwara_no_mokou shameimaru_aya kazami_yuuka ibuki_suika shameimaru_aya kazami_yuuka onozuka_komachi shiki_eiki
04 aki_minoriko aki_shizuha kagiyama_hina kawashiro_nitori inubashiri_momiji kochiya_sanae moriya_suwako yasaka_kanako hinanawi_tenshi nagae_iku kisume kurodani_yamame
05 mizuhashi_parsee hoshiguma_yuugi komeiji_koishi komeiji_satori kaenbyou_rin reiuji_utsuho nazrin tatara_kogasa unzan kumoi_ichirin murasa_minamitsu toramaru_shou
06 hijiri_byakuren houjuu_nue himekaidou_hatate sunny_milk luna_child star_sapphire kasodani_kyouko miyako_yoshika kaku_seiga soga_no_tojiko mononobe_no_futo toyosatomimi_no_miko
07 futatsuiwa_mamizou hata_no_kokoro wakasagihime sekibanki imaizumi_kagerou tsukumo_benben tsukumo_yatsuhashi kijin_seija sukuna_shinmyoumaru horikawa_raiko ibaraki_kasen usami_sumireko
08 seiran_(touhou) ringo_(touhou) doremy_sweet kishin_sagume clownpiece junko_(touhou) hecatia_lapislazuli eternity_larva sakata_nemuno komano_aunn yatadera_narumi teireida_mai
09 nishida_satono matara_okina yorigami_jo'on yorigami_shion ebisu_eika ushizaki_urumi niwatari_kutaka kicchou_yachie joutouguu_mayumi haniyasushin_keiki kurokoma_saki okunoda_miyoi
10 goutokuji_mike yamashiro_takane komakusa_sannyo tamatsukuri_misumaru kudamaki_tsukasa iizunamaru_megumu tenkyuu_chimata himemushi_momoyo ??? morichika_rinnosuke hieda_no_akyuu ???
11 ??? ??? ??? usami_renko maribel_hearn

[deleted]

you make me feel bad for knowing them all without a second thought