Reincarnation Coliseum, Vol. 4 (manga)

In preparation for the tag-team match, anticipating their opponents, Mikagami gives Mary special training in skill combos. But their opponent, Musashi, is way stronger than they’d ever planned for, and the relentless assault of her heavy blades drives Mary into a corner. Mikagami tries to weather her attacks and buy time for Mary, but when he finally sees a chance to turn the tide, for some reason he hesitates to make his move…?!