HASEGAWA is almost certainly the accomplice. He insisted on staying in the back and also insisted on taking Miyata's bag, which would have been useful against the wind. I see no one else who could have been an accomplice, and his high position in the company also helps him to contact people in order to avoid a search party from looking for them. I'm sure he misplaced the phones as well.
The ending jokes continue to be very funny. Love the story so far, and crazy monkey mountain climber man. @Mr_Detective, any chance of you posting the blank end meme?
@Junkmech Sorry I forgot to reply, lol. XD I thought you guys can just edit the pictures on your own if you want to using Photoshop or similar programs. Here, I'll give you the blank version.
As always, appreciate those who enjoy my translation!
Thank you for your hard work translator
Here is some spoiler for people who want to know the ending.
Beware: it is a spoiler
basically the company created a drug which kill people in the past. Anzai is the legal team of the company and the main villain of the manga. Later on we will find out that there is only 1 monkey, the rest are human trying to get revenge. At the end, only the main character and his male friend, and a female (saved by the glassed guy) surived.