Tsuujou Kougeki ga Zentai Kougeki de Ni-kai Kougeki no Okaasan wa Suki desu ka?

Synopsis

Masato Oosuki fills out a questionnaire claiming to have a very average relationship with his mother, Mamako. Masumi Shirase, from the Cabinet Office, informs Masato he is to start a new life inside a video game. However, after entering the fantasy world, Mamako is transported alongside him. The Teleportation King registers them as "Normal Hero" and "Normal Hero's Mother", and explains they were selected based on Masato's questionnaire, and have been transported inside the game via unexplained technology. Masato is allowed to choose a sword and he selects Firmament, Holy Sword of the Great Heavens, while Mamako grabs two swords, Terra de Madre, Holy Sword of Mother Earth and Altura, Holy Sword of Mother Ocean, planning to use them as kitchen knives. It becomes clear Mamako is more powerful than Masato and she admits Shirase sent her with him for a secret reason. They begin in the Kingdom of Mommalia at the adventurer's guild where the desk assistant, Shirarase, looks and acts uncannily like Shirase from the Cabinet Office. When Masato recruits three girls, Mamako decides she must interview them to see which will be a suitable future bride.

(Source: Wikipedia)