Black Relation

When Itsuki loses consciousness due to anemia, Kazuma, a fourth-year university student, comes to her rescue. This is the first time that the earnest Itsuki has had a serious relationship, but what is his true nature...?! An unpredictable and dangerous love! (Source: Hakusensha, translated) Note: All chapters were split into multiple parts in the original serialization and later combined in the volume releases.