Hime ga Taisetsu Sugiru Chou Katabutsu Kishi no Risei ga, Biyaku de Kekkai Shimashita.

In the Kingdom of Alterra, Princess Liina harbors an overwhelming affection for her personal knight, Noah. Despite her daily declarations of love, the earnest and deeply disciplined warrior remains entirely oblivious to her advances. Bound by his unwavering sense of duty, Noah is the picture of a perfect guardian—loyal, serious, and wholly dedicated to protecting the princess above all else. During a lively kingdom festival, Liina encounters a peculiar fortune teller who gifts her a mysterious elixir said to draw out a person’s deepest instincts. Desperate to uncover Noah's true feelings, she openly asks him to drink it. Convinced the potion is nothing more than a harmless fake, he complies without hesitation. In an instant, the rigid restraint he has always maintained shatters completely. The intense desire he had long suppressed beneath his rational mind surges to the surface, and he suddenly pins the startled princess down. Overwhelmed by his sudden transformation, Liina finds herself firmly held by the waist, unable to slip away from his grasp. As his heated breath falls against her and his raw instinct clashes with the remnants of his reason, she is left wondering whether this passionate display is merely the work of the elixir—or if it reveals emotions that were there all along.