The story background is constructed based on 200 chapters of the original manga + Nagi's side story.
Nagi thought that King Ling would always be with him, but after the Blue Prison Project ended and King Ling left him, he realized that King Ling was very important to Nagi.
Love needs to be watered, not in 2 to 3 weeks, nor in a day or two. Nagi was worried about how to water King Ling's love.
Concept: Love needs to be cultivated
