Ryu is the first head released by Migidoll. His sculpt was completed in 2005, and he was launched in 2006. 
Ryu is a 1/3 (similar to Volks SD) sized male doll sculpted by Migidoll and can be bought as either a full doll or a head. He belongs to the M style line and is available in Normal skin and White skin (available in Lati matching Type A and Volks Matching Type B for both skintones). He was also previously released in a tan skintone, which is similar to Volks suntanned.
After ten years, Ryu's final sale was held on March 2016 . Migidoll has cited that he will only be available as a One Off limited in the future.
- "Sky Guys" along with Miho (LE 10)
- "Ryu Free Make Up" along with Cho (LE 10)
- One-Off for KBJD Convention "The Pumpkin King - JACK" 
Eye and wig size
- Eye Size: 14mm
- Wig Size: 8-9inch
For newer Migidolls, they come with guarantee cards as well as a identifying number (or serial number). This number is written on the guarantee card, as well as on a long thin strip of sticker pasted inside the head. The older Ryus have a carved serial number inside the heads instead of the sticker. All Ryus have "MD Ryu" carved on the inside of their headcap.