Remember when Shiori and Akari both seemed like viable candidates to end up with Jirou? But then Shiori seemed so needy and insecure all the time that she eventually lost fan support. And after that, the readers preferred to focus on Akari’s storyline instead. After all, why read about a...
Leviatan was down for site upgrades for a couple of days, then when it came back online, "Immortal, Invincible" was mysteriously absent. They left off at chapter 123, I think. Kakao looks like the only source now.