Weiyang～4 sides verison～

It seems that everything in this world will expire, canned meat will expire, mineral water will expire, registration time and other things will expire, and it is even ridiculous that even fresh-keeping paper will expire... So, in this world, what is there in the end? Will it expire?Is there anything that won't spoil and won't be discarded or forgotten? ┃ Search keywords: Protagonist: Keita Tachibana, Quincy ┃ Supporting roles: Ryohei Chiba, Ryuichi Ogata