Marin comes back to Kanda's house for a visit, but what's this? She's plumper than ever! Everyone will have to work together to get her back in shape. For Moriyama, time is almost up to find two more band members before the group gets disbanded. But stress also runs high for Kanda, while Fukumaru promises to stay by his side and help his anxiety.

Volume 13 of the A Man and His Cat manga series by Umi Sakurai.