If you're looking for manga similar to 3-gatsu no Lion meets Bump of Chicken, you might like these titles.
A mystical flower offers a prosperous future for its bearer. Determined to find the flower for Nezuko, Tanjiro makes a harrowing journey up a mountain—but Inosuke reveals the flower’s true worth. In other tales, Zenitsu recalls the day he battled a demon to save a crying girl, a fortune-teller warns Zenitsu that he’ll die if a girl falls for him, Kanao helps Aoi learn her value apart from killing demons, and when Kimetsu Academy students search for the recipe to win over Mr. Tomioka, Mr. Rengoku ropes them into cooking!
Revisit the Demon Slayer Corps with six tales of love, friendship, and courage! Shinobu and Kanae ask Himejima to teach them how to slay demons. After he refuses, they must complete the impossible task of moving a giant rock to convince him to introduce them to trainers. In other tales, Zenitsu tricks Inosuke into helping him dig a hot spring under Uzui’s training, Mitsuri grapples with her reason for becoming a Demon Slayer, Genya discusses his family with Sumi, the Hashiras try to make Tomioka smile, and Kimetsu Academy forms a rock band—much to Shinobu’s chagrin!
Demon Slayer Masachika kills a demon to save Sanemi’s life, and then he takes the younger boy under his wing. Years later, the pair investigates disappearing children and ends up facing off against one of the Twelve Kizuki! In other tales, Kanamori hopes to smooth out Hotaru’s rough personality through marriage, Inosuke searches for Kiyo’s stolen butterfly clip, Muichiro helps Kotetsu repair the Yoriichi Type Zero, and Rengoku leads a mission to hunt ghosts at Kimetsu Academy!
After saying "I wanna go somewhere far away..." in front of Hakase, Yukko and friends are flung into the far reaches of space. They encounter a planet where anything you say becomes real, and enjoy themselves to their hearts' content. But at the same time, Tokisadame City is faced with a fearsome threat?!
Uchiha Sasuke journeys to the Howling Wolf Village, where Itachi's eye medicine was produced.
When I came down with a cold and was bedridden, a beautiful woman wearing cat ears appeared before me. But it turns out that she was actually my pet cat...?! She's usually calm, cool, and collected, but put cat ears on her and she's fawning all over me. How will my love with this mysterious beautiful woman turn out?