Verbellum: Kotoba no Sensou

High schooler Keiji Iruma was living a dull and empty life, until one day, when he is invited to a “word-gathering” game where players kill each other using the power of verbs. After deciding to participate, the verb he draws is “open.” It seems to grant the ability to “open” anything by swapping the subject and object to form a spell—!? Survive by wielding the power of “words”— The ultimate linguistic survival game is about to begin!! (Source: Ura Sunday, translated)