Toda Yuji and Kojima Isagi used to be close friends when they were little, but they drifted apart with the years. Yuji's your typical model student, while Isagi is a problem child. Even though they're almost like strangers now, Yuji keeps dreaming about a traumatic experience he had long ago, where he was saved by Isagi. After a chance encounter at school, they start hanging out with each other again. But one night they both get into serious trouble.
Исаги-Кодзима is a completed manga by Sugiura Shiho. It blends psychological, boys' love, drama and slice of life. You can read all 3 available chapters of Исаги-Кодзима online for free on MangaPulse; the newest is Chapter 3, added 2018-02-25. The series is finished, so you can read it from start to end in one go.