Cover illustration: Riiruu 
1. Oji Hara (おじハラ) [Riiruu] 
2. Junai Mellow Yellow (純愛メローイエロー) [Miniwa] 
3. Oji-sama, Mitaiken Zone (おじさま、未体験ゾーン) [Shiki Fujimine] 
4. Tsutsuji no Hana (ツツジの花) [Mimi Tanagawa] 
5. Next step [Chiyoko Origami] 
6. Strawberry Short Cake (ストロベリー・ショートケイク) [Yan] 
7. How to Catch a Star: The light of my life (ハウトウキャッチアスター～The light of my life～) [m:m] 
8. Koharu Biyori (小春日和) [sono] 
9. Hadaka no Ou-sama (裸の王様) [Reibun Ike]

A BL anthology based on serious sex with an average age of 45. 

Cover illustration: Niyama 
1. Coming! [Niyama] 
2. Seiten no Renai Hekireki (晴天の恋愛ヘキレキ) [HARUYAMA Moto] 
3. Yume no Awa (夢の泡) [MATSUMOTO Yoh] 
4. Himitsu no Tsuzuki (秘密の続き) [ROTTA Ikumi] 
5. Ore no Kareshi ha "Ikeoji" Sensei (俺の彼氏はイケおじ先生) [FUJIMINE Shiki] 
6. Sono koi ha Cake yori Amakute (その恋はケーキより甘くて) [ORIGAMI Chiyoko] 
7. How to Catch a Star (ハウトウキャッチアスター) [m:m] 
8. Futari to Kuroi Neko (ふたりと黒い猫) [Rocky] 
9. Hodasareru Otoko (ほだされる男) [YOSHIMOTO Senco] 
10. Last Limousine (ラスト・リムジン) [RIIRUU] 
11. Kimi ni Tsuzuru Romance (君に綴るロマンス) [NERIMA zim]

Oscar, an Alpha, was raised as the crown prince of Galguardand has grown to be both handsome and refined. For some reason, he is to conduct a signing ceremony alone with Prime Minister Legrand of the allied nation. The moment Oscar confronts Prime Minister Legrand, his body suddenly goes into "heat" simulating that of an Omega, even though he's supposed to be an Alpha. Could Prime Minister Le Grand actually be the "Supreme Alpha" who is said to be the only one in a hundred years to cause even an Alpha to go into heat...?
 
(Source: Brain House, translated)
 
Notes: 
- Chapters 1 to 3 were previously published in the anthologies Mesuiki x Ureoji BL (メスイキ×熟れおじBL), XL Size BL (XLサイズBL), and Ureoji x Omegaverse BL (熟れおじ×オメガバースBL), respectively. 
- Includes one extra chapter and the one-shot "Hadaka no Ou-sama (裸の王様)" previously published in Ureoji BL: Seme & Oji Doushi (熟れおじBL -攻&おじ同士-).

The misanthropic and antisocial novelist Kiriya is currently in a slump. A gardener named Torai Sotetsu comes to Kiriyas house. Torai's flashy and delinquent looks is the type of person Kiriya has the most problems with. Kiriya takes a brusque attitude towards Torai, but Torai manages to open up the narrow-minded Kiriyas heart with his unfazed attitude.

Cover Illustration: Niyama 
1. Sake to Tobacco to Kiss (酒とタバコとキス) [Hon Toku] 
2. Jin-san to Shiro (陣さんとシロ) [Akira Yoshio] 
3. Ore mo Omae mo (俺もおまえも) [Yoshimoto] 
4. Naka made Sawatte Ii desu ka? (ナカまで触っていいですか) [Kunihara] 
5. Naisho no Junbishitsu: Shima-sensei no Himitsu ~ ( ないしょの準備室～嶋先生のひみつ～) [Moto Haruyama] 
6. Mesuiki Lesson (メスイキ・レッスン) [Riiruu] 
7. Hajimemashite, Ohisashiburi desu (はじめまして、お久しぶりです) [Rocky] 
8. Welcome Back, Darling (ウェルカムバック、ダーリン) [Yan]: Continuation of Strawberry Short Cake from Ureoji BL: Seme & Oji Doushi. 
9. Father Milk Garden: Luka to Garua (ファザーズミルクガーデン～ルカとガルア～) [Kiu Aion] 
10. Yosugara-kun wo Omou ~ 2-ri Kiri no Kyūjitsu ~ (夜すがら君を想う～2人きりの休日～) [Mimi Tanagawa] 
11. Alpha no Chouinshiki (アルファの調印式) [Reibun Ike]

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