Don't have Telegram yet? Try it now!
https://isekaiwebnovel.com/2019/03/15/ore-no-ie-ga-maryoku-spot-datta-ken-sundeiru-dake-de-sekai-saikyou-chapter-16-20/
Ore no Ie ga Maryoku Spot datta Ken ~ Sundeiru dake de Sekai Saikyou ~ Chapter 16 - 20