Book 1

Jealousy, Vol. 1

by Scarlet Beriko

Published 6 August 2020
The prequel to the popular yakuza rom-com Fourth Generation Head: Tatsuyuki Oyamato!

A yakuza head finds himself ensnared in the unwavering attentions of a sometimes impetuous but always cunning schemer. If being yakuza doesn’t get him killed, his new lover just might!

Uichi Rogi is in a bind, both literally and figuratively, when he meets Akitora Oyamato, the yakuza head who’s come to collect a debt from Uichi’s lover. Instantly smitten, Uichi concocts dubious and often dangerous schemes to get closer to the man, but his lies come at a heavy price—one he may regret having to pay for Akitora’s affections.

Book 2

Jealousy, Vol. 2

by Scarlet Beriko

Published 12 November 2020
The prequel to the popular yakuza rom-com Fourth Generation Head: Tatsuyuki Oyamato!

A yakuza head finds himself ensnared in the unwavering attentions of a sometimes impetuous but always cunning schemer. If being yakuza doesn’t get him killed, his new lover just might!

Thanks to Uichi Rogi’s lies, his sugar daddy is dead and the object of his affection, yakuza head Akitora Oyamato, is bleeding out. Needing to lie low, Uichi and Akitora seek refuge in a gang safe house, where pain and pleasure quickly collide. But nothing in Uichi’s life is simple, and he soon finds himself naked and face-to-face with Akitora’s wife and infant son!

Book 3

Jealousy, Vol. 3

by Scarlet Beriko

Published 12 January 2021
The prequel to the popular yakuza rom-com Fourth Generation Head: Tatsuyuki Oyamato!

A yakuza head finds himself ensnared in the unwavering attentions of a sometimes impetuous but always cunning schemer. If being yakuza doesn’t get him killed, his new lover just might!

To earn the trust of his beloved yakuza boss, Uichi finds quick success with the stock market trading Akitora has asked him to do for the family. But this gives Akitora’s right-hand man, Asoda, dark feelings of envy toward his childhood friend. Of course, not everything can continue coming up roses for Uichi, and he soon discovers a mistake in his stock account that leaves him deep in debt!

Jealousy, Vol. 4

by Scarlet Beriko

Published 11 November 2021
The prequel to the popular yakuza rom-com Fourth Generation Head: Tatsuyuki Oyamato!

A yakuza head finds himself ensnared in the unwavering attentions of a sometimes impetuous but always cunning schemer. If being yakuza doesn’t get him killed, his new lover just might!

Having lost the place he called home, Uichi seeks help from his beloved Akitora’s rival, Matsumi. But instead of being helped, Uichi is captured and tortured by the evil man. To make matters worse, the second head suddenly commits suicide, and his final words light a dark fire in Matsumi’s heart!

Jealousy, Vol. 5

by Scarlet Beriko

Published 13 October 2022
The prequel to the popular yakuza rom-com Fourth Generation Head: Tatsuyuki Oyamato!

A yakuza head finds himself ensnared in the unwavering attentions of a sometimes impetuous but always cunning schemer. If being yakuza doesn’t get him killed, his new lover just might!

Akitora chases after Matsumi, who’s in possession of his son and Uichi. The long-standing feud between brothers is finally put to an end, and Uichi, who has now accepted he’ll never be part of Akitora’s family, spends a sad final night with him. Twenty-seven years pass, and the two souls who have grown older, and perhaps wiser, meet again.