Sekai-ichi Hatsukoi Wiki
Sekai-ichi Hatsukoi Wiki

"Love is Without Reason" is the sixth episode of the second season of the Sekai-ichi Hatsukoi anime series. The episode introduces the fourth couple Ryuichiro Isaka and Kaoru Asahina.


This episode is an adaptation of the previously animated side story from Junjou Romantica, "Junjou Mistake." Originally wanting to be a novelist, editor Ryuichiro Isaka is torn between choosing editing, which he apparently excels at (he can determine which book will perform well in sales), and writing, which he admits (to himself) that he isn't that good at. He is also struggling with his feelings toward his assistant and longtime companion, Kaoru Asahina.

Isaka and Asahina express their love for each other


  • This couple only has one appearance together in the entire show. Their storyline continues in a single stand-alone episode in the Junjou Romantica anime that acts as a sequel to this episode. 


Sekai-ichi Hatsukoi anime

Season 1 (2011) OVA. No love's like to the first • 1. First Impressions Are the Most Lasting • 2. A Man Has Free Choice to Begin Love But Not to End It • 3. In Love There is Both Dotage and Discretion • 4. Adversity Makes a Man Wise • 5. Love Is Lawless • 6. Go to The Sea, If You Would Fish Well • 7. Coming Events Cast Their Shadows Before Them • 8. Looks Breed Love • 9. The Die Is Cast • 10. Absence Makes the Heart Grow Fonder • 11. It never rains but it pours • 12. After a Storm Comes a Calm


Season 2 (2011) OVA. The quarrel of lovers is the renewal of love • 13. A Good Beginning Makes a Good Ending • 14. One Cannot Love and Be Wise • 15. Lingering Love Breeds Mistake • 16. Delay In Love Is Dangerous • 17. Follow Love and It Will Flee Thee, Free Love and It Will Follow Thee • 18. Love is Without Reason • 19. Actions Speak Louder Than Words • 20. Love and envy make a man pine • 21. Love is Blind • 22. Love goes never without fear • 23. Love makes the world go round • 24. Love is a Bitter-Sweet

Continuations The Case of Takafumi Yokozawa (2014 movie) • Proposal Edition (2020 feature)