There's a scene I remember. The mc's brain doesn't work like normal. So the whole group is in this dungeon and the mc is stuck in a canary cage since 1 member has to go in. Then he starts swinging on the swing. He also goes to sleep in the cage while the others are fighting outside it. Mc ends up being the first one to get out of cage in game. I want to reread that part so bad, but for some reason all I can think of is You Boys Play Games Very Well, and I'm 98% sure that isn't the book. Please help.
There's a scene like that in It’s My Turn to Take the Stage to Fly, but translation hasn't gotten that far.