And you thought there is never a girl online? is a 2013 light novel series that received an anime adaptation in 2016.
Hideki Nishimura plays the MMORPG Legendary Age under the alias Rusian, a teenager who swears off online marriages after proposing to a girl who turns out to be a man. Now after two years, he accepts another in-game proposal after much perusaion, and is shocked to discover that both she and the rest of their guild members are in fact girls and go to the same school as him.
Episode 7 Edit
Hideki goes to the beach with his guild members and is also briefly seen taking a bath.