I read the first chapter as a joke because... Well look at the title.
This is not a deep manga, but god its fast paced and super cute. There is little drama, the artwork has only a handful of blood splatters, and the character interactions are entirely wholesome.
Jade-kun is just a gigantic sweetie who just needs the push of the cute, 🥳 unsexualized (thank god) 🥳, loli dragon he adopts to hold a conversation and get closer with his favourite guild receptionist - another sweetie pie.
There is very little of substance here, the MC starts age 12 in the first chapter and ends age 24?? in the first chapter and is also now crazy OP. The few moments of tension are romantic moments and minor drama but there is never anything on the line.
Recommended for a (as of this review, short) easy read for those who like romantic stories that fulfill themselves quickly. Story is cute, art is cute, characters are all cute. Can't see this ever being better than a 7.