It's implied ML tore off his previous guide's head and possibly ate some of him while they were "guiding" and that's why he has to be muzzled and doesn't want deep guiding now???

MC clearly doesn't know any of this and they don't tell him about the stakes involved, for example, even down to even the abort button they give him in the treatment room with ML. MC clearly thinks it's just a stop signal, like maybe to the staff outside, when it's actually a "call in the national guard" type situation and ML continues to... not tell him? Even when he can see MC going to press the button??? Also why give him the button there when ML can so easily stop him from using it anyway... orz why am I expecting logic from webnovels...

killing his previous guide during s*x. It felt like a weirdly horrific backstory for the author to include in the story vs something like the guide just dying tragically from a dungeon or from a lighter mistake instead.

eg. The ML had ED due to his psychological trauma for a large chunk of the story,

such as the team lead's dad and the head of the research facility.

I left off at the part where an S class esper that died/ killed in Russia death led to no more gates opening in Russia. So now this organization is coming to kill ML and warn others to do so as well so that the gates may be stopped.

S class Espers for some reason feel really drawn to the gates/rifts ML almost walked in once but was stopped by MC

the gates and the origin of the No-Named are never explained! How can you not explain this?! Author, this is a very large plot hole! Also, what happened to the rest of the No-Named? The author tries to wrap the story up by saying now there's hope for others, but no one else has a 98% matching rate and a guide that practically worships them, so it seems unlikely that the situation has changed for any of the others... nor is the director who hired the assassins ever punished, so that's frustrating too

Considering how much I cried over this novel, I really needed to see their happiness. They get married and live happily ever after. After all the hardships they went through, they really deserved it. The ending was very satisfying.

Getting to that final level, "Deep Pivot" is not just some simple physical fulfillment described in a manual (even though they do provide that textbook description) but something much deeper.

From the amount of his tears and painful reactions, you'd think he was the one being penetrated, but physically, Baby Yeonwoo is our top. Seo-jun is the bottom physically but he definitely controls this relationship. He and (kmiyc's) Josh will definitely get along.

Atltough Yeon Woo is kinda manipulative and might show some signs of possesiveness after the final gate event, but understandable