@Cinzia Yes Yess
Spoiler!
He saw the baby in first chapters. He mistakenly guess that child is ML's child and he is useless. That's why he attempt to suicide in first chapters. This is his past story.
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Omegaverse >ω< https://mangamirror.com/manga-list/106967
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Historical BL ♛➛ https://mangamirror.com/manga-list/122136
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Best stories ⛧⁀ https://mangamirror.com/manga-list/106911