Isekai-gaeri no Eiyuu Iwaku

Daiki Kurosu is a high school student concerned with his school performance and his younger sister's playful teasing. He begins to feel a sense of emptiness in his routine life. One day, he experiences a strong emotional reaction upon encountering a mysterious girl on the street. She is a witch from a different world, currently living in concealment. This marks the start of the manga adaptation of the novel "Irinoku," which won a contest on Kakuyomu.