Rank
N/A, it has 1K view
Alternative
Houkago no Meikyuu Boukensha ~Nippon to Isekai wo Ikiki Dekiru You ni Natta Boku wa Level Up ni Isoshimi Masu~; 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～; Houkago no Meikyuu Boukensha ~Nippon to Isekai o Ikiki Dekiru You ni Natta Boku wa Level Up ni Isoshimi Masu~; After School Dungeon Diver: Level Grinding in another World ; After School Dungeon Diver: Level Grinding in another World
Fafhred
Has been at chapter 15 elsewhere, for some time.
(mangaread.org/manga/after-school-labyrinth-adventurer-im-now-able-to-go-back-and-forth-between-japan-and-another-world-and-ill-work-hard-to-level-up/)