I just finished Jinrou Game: Beast Side, and after reading death/survival game manga for around 20 years, this might be the worst-executed one I've encountered.
The premise is interesting, but the execution is terrible. There are virtually no meaningful twists, either in the characters' actions or the game's structure. Anything that might qualify as a twist is telegraphed so heavily that it barely registers.
Airi Nishina is easily one of the least likable death game protagonists I've ever seen. I kept hoping the story would pull a bait-and-switch and kill her off early, but instead she survives in the end because Miu Munakata essentially wins the game for her. It comes completely out of nowhere, with almost no setup, and Airi herself never even realizes how Miu feels about her nor does she use it to her advantage. Rather than feeling clever or surprising, it feels arbitrary.
What frustrates me most is Airi's character arc, or rather lack thereof, this time around. What I like about death game protagonists is that they struggle to maintain their humanity amongst the chaos, to me, that makes the compelling, teetering on the razor's edge, but Airi starts Beast Side fully committed to her dark "wolfsona", there is little to no humanity left(You could argue her character arc is resolved in the first Jinrou Game, she is able to confidently point as suspects in the end and eventually steels her resolve to take her lover's life) and, in that case, I have to wonder, why not just make Airi the antagonist? or focus on another wolf as the protagonist and have Airi playing support alongside Konomi Inoue? It doesn't make sense to me to just keep the status quo. She never meaningfully reflects on the previous game, never wrestles with guilt, and never tries to challenge or break the system like other Death game protagonists do. She simply accepts it, so, I have to ask, is there really even any merit in following a character like that in this kind of story specifically?
I was convinced Hitomi Tsushima, who mirrors Airi's former self, would force some kind of self-reflection or redemption. Instead, nothing happens. Airi survives, doesn't even take the money, and, quite literally, walks right back into the cycle without remorse. She doesn't honour the victims, doesn't question her actions, and doesn't even spare a thought for Tomohiro Tada. By the end, she feels less like a wolf and more like a loyal pawn serving the people behind the game, a hound, a domesticated dog, she is truly now a b*tch in every sense of the word lol making her former classmates look like saints in comparison.
Despite all that, I can't say I hated reading it. It's entertaining enough on a surface level. But compared to other death game series, it feels incredibly basic, it's more-or-less "baby's first survival game manga".
I wouldn't recommend it to fans of the genre unless they want to get one of the weaker entries out of the way first. Maybe Crazy Fox is better, but after Beast Side, I'm not getting my hopes up.