on chapter 2.5 which is on page 102 and beyond shows how Toshiya has a crush on Ikumi, he's definitely disturbed when she gets fucked in front of him. so the netorare tag does apply though not majorly
MasashiI'm going to need you to explain why you the Netorare tag should be removed in this case. Following our description on the Netorare tag page, it is a genre where the intent is to cause an emotion of deep jealousy or distress in the reader. The main character in this case also does witness his main love interest get fucked in front of him and mocked quite a bit as shown in page 13-15.
where the fucks that implication