Showed this page to Insect Judas, one of /4koma/s resident translators, so that we could mourn together, but he calls bullshit.
According to him,
"that's Kaneshiro Yuu, the girl from Okinawa.
Kei is saying to her "Nice to meet you", like for the first time.
And it says that we see Kei in this form for the first time in 70 chapters
Why would he write this if he didn't normally be a trap?
I think that thread is just trolling"
I then declared him saint, just out of relief.