I support his relationship with Lit because she is not annoying tsundere type, she can be honest and take a step forward more than Red(ML/MC), and yeah... Red like her too in the same way, but thinking about Ruti feelings about Red, I think she will crush Lit off if she found out so... ┑( ̄Д  ̄)┍
Actually it is not harem how I know this? Well first off many people who have read the novel and have commented down below have stated MULTIPLE times there is no Harem.(▰˘◡˘▰)
Also on novelupdates.com page of the novel it does NOT have a harem tag at ALL.(๑•ㅂ•)و✧
Although it does have a brother complex tag so she might have a brother complex which might be humorous depending on how it is portrayed.(⌒▽⌒)
And lastly someone said that when the mc's sister finds out about his relationship with Lit she more envies them due to the happiness they have that she can't but supports and gives them her blessing. ε=ε=(ノ≧∇≦)ノ (❀╹◡╹)ノ~
The same way he loves her, but it's way too sad for Gosha to experience something like that ╥﹏╥
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And i think i just said the end panel got me like
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Go Daddy Gosha beat that bastard! (╬ ̄皿 ̄)凸