I wouldn't expect any less of him. You might wanna check his room, make sure he isn't hiding any food in there that might attract vermin. It couldn't hurt to check Ken's room either.

[It's just off-handed guess but she knows Chikusa. It's well within the realm of possibility.]

I don't know if there's cockroaches in Heaven but it's not worth the risk of finding out.

[Ayumu laughs softly at Kishi, her eye warm with affection. Oh, how she loves cats. They're so much easier for her to bond with and feel close to than people are. And she can enjoy having company in bed without feeling exposed or vulnerable.]