It’s a manga by the video game of the same name, “Higurashi Daybreak Portable”.
After moving into the quiet town of Hinamizawa, Maebara Keiichi spends his days blissfully in school often playing games with his local friends. However, appearances can be deceiving. One fateful day, Keiichi stumbles upon news of a murder that had occurred in Hinamizawa. From this point on, horrific events unfold in front of Keiichi, as he soon learns his close friends may not be all that they seem. Based on the amateur mystery game by 7th Expansion, the story is told in a series of different scenarios. Onikakushi is the first in a series of manga following the different scenarios of the Higurashi games. It focuses on Maebara Keiichi's arrival to Hinamizawa.
Hirukowashi-hen is based on Higurashi Daybreak. The main characters are Keiichi Maebara and Rika Furude, and this story is set in a parallel world. One day, Rena accidentally swallows something in her mouth during her usual treasure hunting. According to Rika, the seal of the sacred "Fuwarazu Magatama" pairs were broken and Rena must have accidentally swallowed one of them. The magatama holds mysterious magical powers in which a person that has the red magatama will blindly fall in love with anyone with the white magatama. (Source: Wikipedia)

