Looking for yakuza BL manga

The MC is a jobless delinquent with a heart of gold who was frequently taken care of his former high school friend. Their relationship is a bit ambiguous because they get each other off, but don’t go all the way. Anyways MC has a crush on that friend, but didn’t want to keep inconvenience that friend who is essentially being his sugar daddy.
So first or second chapter, MC does a delivery job this sus stranger offers him. MC’s traits are that he’s kind and really stupid so he did that drug delivery job making the yakuza target him. MC gets drugged and attacked, but he a strong boy so he beats a lot of them up and get away back to the friend’s apartment. But MC is still under the drug, so confesses his love to his friend while trying to bang him. Friend becomes lover-kun and they lovey-dovey bang.
After MC sleeps, lover-kun finally finds out what’s happened exactly with MC. Lover-kun goes to the yakuza office, revealing his true job to be that of a high level yakuza and beats the crap out of the yakuza that drugged MC. He threatens his subordinates that they will face his wraith if they ever lay a hand on MC again as “he’s mine”.

Next chapter, MC believes that the sex he had with lover-kun was just a sexy dream and is unaware that they are now officially dating.