Sword Art Online Alternative Clover's Regret, Vol. 2 (light novel) — Soitiro Watase

Klever, a SAO survivor currently working as a detective inside the VRMMORPG Asuka Empire, has another case on his hands. A girl who bears a mysterious resemblance to a new quest character needs help finding her missing father. Though the man in question went missing in the real world, Klever, along with his helpers Nayuta and Koyomi, will have to hit the streets in Asuka Empire to figure out what happened. Meanwhile, Nayuta and her friends visit a hot spring and attend a capybara festival, all within the game!