Quest: Where the TMG Blueprint Lies

Summary

Level Requirement	• 60
Alignment	• None
NPC	• DB Asada
Location	• TMG Building
Repeatable	• Yes
Other	• Requires completion of multiple quests to access (Quest: Extract the Aluminum! in Suginami Camp Ground, Quest: Believe in Home III, Quest: The Oppressed in Arcadia, and Quest: Lord of the Flies in ???).

"Talk about work" with DB Asada.
Talk to DB Tanaka in Nakano and take Quest: Shouldering Burden.
Go to Souhonzan and talk to Gaian Priest Ningen and accept the Quest: Beastly Desires.
Go to Old Ichigaya Camp B108F and speak with the White-Haired Young Man and accept Quest: Recipe for Passion.
Kill the Assassin mobs in the B108F boss room to obtain 10 Secret Nectar.
Report back to the White-Haired Young Man to obtain Passion Stone (Completes Quest: Recipe for Passion).
Report back to Gaian Priest Ningen and give him the Passion Stone. (Completes Quest: Beastly Desires)
Report back to DB Tanaka and receive TMG Blueprint Piece. (Completes Quest: Shouldering Burden)
Report back to DB Asada for your final reward.

It is possible to spam this quest if you obtain multiple Passion Stones and then do a loop of Shouldering Burden and Beastly Desires. Then, you can return and turn in multiple blueprint pieces with the least amount of back and forth.