Bofuri: I Don't Want to Get Hurt, So I'll Max Out My Defense., Vol. 7 (Light Novel) - Yuumikan

Still feeling a bit sad for Sally, who missed out on the sixth layer, Maple proposes they try something fun for the seventh event. It'll be just the two of them, aiming to complete a no damage run with the odds against them and the difficulty set to max. What could possibly go wrong?