What do you feel after watching the ending of "It's Your Turn"?

First of all, before the ending came out, I thought there was a high probability that Heidao was the big BOSS, and I had no antipathy to her becoming the BOSS at all. I just expected how the screenwriter and director would present it to the audience. I can only say that the greater the expectation, the greater the disappointment, and I feel sorry. The following are some points that I find difficult to reconcile:

What is the reason why Nijito called Ono to the hotel, why Ono agreed, and why he left in a huff. Is it because Ono felt that Nijitang had a good impression on him, called the hotel to be happy, and then saw Shota suddenly locked his throat and left disappointed? Erjitang and Heidao subdued Xiangtai together and wrapped Shota's head with sheets so that others wouldn't notice. Isn't that contradictory to Heidao's desire to die?

Heidao's height of 159cm can't be big enough to wear a size of 26.5cm 42. So how did she take down the 178cm gangster with great strides and drag him to the toilet with infinite strength? There is another question here. It is an accident that Fukuda's leg was injured. How can a petite girl in Kuroshio have the confidence to kill a gangster? Is it because she eats too much that she is strong? Extending here, how did Kuroshio know that Fukuda and his party were going to find Meiwei's biological father? Was it stalking? Black Island and Neishan didn't say there was a car. Cai Nai was stabbed by Heidao and Neishan when he was asleep in the hospital, and then he was killed. Finally, he carried his body home. The hospital had doctors and nurses on duty, and the hospital corridors and roads were monitored. The murder and corpse transportation were so smooth that no trace was left. If you insist that there is no monitoring, that's fine.

How did Ono know that Kuroshio killed Chennai? Did he really see it or lie? There was no explanation. And what's the significance of Neishan's video being shot at Ono's home, whether it's framing Ono or the director and editor's mystifying. Is the scene where the automatic wheelchair sends a note to Erjitang and Shota and grandma Chichi sits on the roof for the theater version, or is this the end? Does Miss Tamiya's derailment help the plot? Is it helpful to shape the image of Tamiya? Does it mean that he is too involved in the play to go out in the play?