BL Metamorphosis is a completed manga by Tsurutani Kaori, first published in 2017. It blends comedy, boys' love and slice of life. You can read all 8 available chapters of BL Metamorphosis online for free on MangaPulse; the newest is Chapter 8, added 2018-12-21. The series is finished, so you can read it from start to end in one go.