Jimiko na Mitsuba-san ga Boku wo Yuuwaku suru

The girl he thought was plain was actually a carnivore!!? Takeya is an ordinary high school boy, and because of his experience of being rejected over and over again in the past, he is always careful not to mislead girls. But even though he is such a stubborn boy, there is one girl he is very interested in. She is Mitsuba Agari, who sits next to him. She is plain and often forgotten by others, and is like an invisible mob girl, but she keeps coming on to him!! Takeya tries to suppress his instinct to fall in love, but he is at the mercy of Agari who keeps coming on to him!!? (Source: Kadokawa, translated)