计算器音乐某科学的超电磁炮oponlymyrailgun

only my railgun—某科学的超电磁炮op

[中日字幕] 科學超電磁砲 only my railgun -version 2020

【外录】【maimai finale】only my railgun remaster ap - by lazuro

【预订】a certain scientific railgun vol. 9