Levi took a nap in an abandoned laboratory meanwhile Hange finds a stranger sleeping in her abandoned laboratory. An unlikely friendship was then formed from that incident. Oh, and an unlikely couple too.

Levi Ackerman, a twenty six year old tea shop owner, is granted temporary custody of his four month old cousin Mikasa.

An experiment has gone wrong, and Hanji Zoe had to pay for it. Only Levi Ackerman can hide Hanji's mistake, and is the only one who is allowed to love her.