After-School Dungeon Diver: Level Grinding in Another World

High schooler Kudo Akira happens upon the ability to travel to and from the world of Do-Melta, where the guild receptionist mooches off of him, his magic instructor gives him ""rewards,"" and he gets to have some fun with a girl he saves.

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放課後の迷宮冒険者　～日本と異世界を行き来できるようになった僕はレベルアップに勤しみます～