The creature of the lake (Patreon)

Sakura Matou (Fate/Stay night) was exploring some interesting submerged ruins when she was attacked by a mysterioous creature from the depth of the lake!

She hides behind the destroyed walls of the ruins, running out of air...when she suddenly sees Blake (RWBW) hiding right next ot her...she doesn't know where she came from, but she's glad she did.

Blake must now find a way to save Sakura from this situation.