Rennyuu Order

1.) Sun x 3 Summer! (SUN×3 Summer！)
2.) Kaiten Eigyouchuu♥ (快店営業中♥)
3.) Magokoro Hold (マゴコロホールド)
4.) Princess of the Sun / Taiyou no Hime (太陽の姫)
5.) 2 Balls into Marriage / Nikyu Nyukon (二球入婚)
6.) Go in My Way / Gouin My Way (強引マイway)
7.) Thawing Love / Yukidoke Renbo (雪解け恋慕)
8.) Thawing Love Another Point / Yukidoke Renbo Another Point (雪解け恋慕 Another Point)

• Chronologically takes place before Thawing Love / Yukidoke Renbo

9.) Sunny Drops (サニードロップス)
10.) Big Sister's Heart and Spring Sky / Aneki Kokoro to Haru no Sora (姉貴心とハルの空)
11.) Princess of Warmth / Nukumori no Hime (温もりの姫)

Note:
Originally published by Wani Magazine as Rennyuu Order, later re-released by GOT as Rennyuu Order ~ Okawari ~ (恋乳オーダー～おかわり～) with 4 more chapters.

Additional Links:

• GOT (Publisher) (Okawari ver.)

Animated OVA adaptation: Rennyu Order The Animation