If you are wondering why Mitsuru and Koichi are looking at their phones and what this date mean i have an answer.
In first chapter Koichi tells Mitsuru that they can't meet. You can see a calendar with circled date ( http://iweb6.mangapicgallery.com/r/newpiclink/doronuma/1/f60fb25833d2c4232e5ecb53ff44f827.jpeg).
Some pages after we can see Mitsuru thougts: "We couldn't meet on my birthday because..."
So 28th November is a Mitsuru's birthday. They were looking at their phones because lots of people send their wishes at midnight to ones they like.
Oh, so that’s what it was... didn’t understand that page.
I have a spoiler pic for every worried soul here:
https://scontent-frt3-1.xx.fbcdn.net/v/t1.0-9/20841204_1472955826107567_8878142940455089820_n.jpg?oh=d29e64015eee50dea2f9885f67ab1385&oe=5A32AB71
Only thing keeping me alive is this pic (SPOILER ALERT): http://68.media.tumblr.com/ae8fb959e8a198fe3f16f4ec602016ab/tumblr_okk3hwOmeG1tx280oo1_1280.png
Yes, this story has a happy ending. Chapter 58+28 is the last one.
I wish i knew why and how they are have this child... But I cannot neiter speak Korean nor get access to raws (It's not free. You have to pay for them. You can find them here: http://www.foxtoon.com/comic/batbreed )
Anyway I've read somewhere that it's really their child. Well, we have to wait and find out...
MAJOR SPOILERS!!
OK OK OK SOOO you enticed me to google and this might make ppl feel better too
https://chiharuu-chan.tumblr.com/post/148472124938/justnamine-raising-a-bat-chapter-58-spoiler
Guys, have you read this? Dj about bear-Morinaga and wolf-Senpai? I highly recommend this! http://www.mangago.zone/read-manga/koisuru_boukun_dj_aru_hi_mori_no_naka/
Already read it before and it's super sad at the end
Spoiler on that: Senpai dies in the end and Morinaga waits near his grave until he dies of old age, which means that since he's a bear, he waits by that grave for 20+ years.
that or he just slowly starves himself to death by sitting there and not moving.... which is kinda the idea I got from that ;_; Either way it's sad.....