Houkago no Isekai Boukenbu

After his parents vanished, Suzuki Tooru’s life spiraled into chaos, eventually landing him a job as the caretaker of a rundown school dormitory in Tachikawa. The place is falling apart, the students living there are all eccentric, and to top it off, rumors swirl about ghostly hauntings. But the real surprise? The dorm is secretly linked to another world! Even though Tooru has no friends in class, he can always escape to the dungeon to battle monsters and grow stronger. Along the way, he befriends a slime, a female knight, and even a sorceress ♪ And so begins his daily routine of after-school adventures in another world!