Mayoi Neko Overrun!

Mayoi Neko Overrun! is a light novel series that received an anime adaptation which aired in 2010.

The story follows Takumi Tsuzuki

Episode 2
Takumi, Ieyasu and Daigoro are briefly at the school swimming pool.

Episode 4
Takumi gets separated from his friends after Ieyasu accidentally activates a trap that sends them into the woods.

Episode 8
Daigoro and Takumi go shirtless as they compete in a game of jenga where each block contains a command the person must perform before use.

Episode 9
Takumi and his friends go on a vacation at the beach.