Bofuri: I Don't Want to Get Hurt, so I'll Max Out My Defense., Vol. 15 (light novel) — Yuumikan

The large-scale PvP event has reached unprecedented heights, with top players being eliminated even on the first day! Maple Tree and the Order's next strat includes a plan to rain down insta-death poison over the enemy lines! With a lightning-fast strike by just three players -- Maple, Sally, and Frederica -- the enemy camp is thrown into chaos. Determined to take Maple out, they launch a counterattack, but...!?