Rebirth of a Cannon Fodder from a Novel - very dogblooded. MC has had a really shitty life with his family. Meets ML pretty soon in novel. No...
Matriarch is Pretty and Cool - no transmigration, but very powerful MC from the start
The site where I read it in the past doesn't exist anymore. I did a quick google search with the terms 'ichi' and 'manga' and first result was...
I'll also add some with FMC that mostly fit just in case. Walking Daddy - father and daughter Raising A Child Even In The Apocalypse - 2 men (no...
Rebirth of the National Male God - joins the army later one. Very OP MC I Am A Killer - joins military Return of the Female Knight - my memory of...
Just in case you're mixing things up. Parts of what you mention resemble this novel. The ML part is different in this one. From Sidekick to Bigshot
I Just Want to Freeload on Your Luck Why Fall in Love if You Can Attend Tsinghua University After Rebirth, the Scum All Cry for Forgiveness My Son...
The novels I know also involve pill concocting as far as I remember, so I'll name a few manga Vagabond Rurouni Kenshin Claymore - female MC Blade...
Into the World of Medicine - Cultivation. MC joins a cultivation academy You’ve Got The Wrong House, Villain - has villain in name, but nice...
Solo Leveling Coiling Dragon Stellar Transformation Chronicles of Primordial Wars
Super Craftsman - only a few chapters were translated. Seemed interesting to me from the chapters I read, but didn't continue MTL'ing because of...
Extraordinary Genius God of Money
Source Of Calamity - not really scum gong, but from what I remember gong was reborn first. ML didn't really help MC in previous life because of...
For manga you can do a search on bdsm and BL on anime . planet. Perhaps you've already done that, but just in case.
not exactly what you asked for, but you could check out Transmigrating into the Female Supporting Character with a Good Life in a Laid-Back Novel...
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