Ⅰ. Hwarim-won

The world of twin brothers Yoon Siwoo and Yoon Sion completely collapsed in the spring of their fifteenth year at Hwarim-won.

A catastrophic explosion of unknown cause. Under the soaring flames and collapsing ceiling, the older brother Siwoo instinctively shielded his younger brother Sion with his own body.

Siwoo suffered critical major injuries all over his body, while Sion survived with relatively minor injuries inside Siwoo's embrace. However, their parents died instantly at the scene, leaving them as each other's only family in the world.

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Ⅱ. Bothriospermum and Forget-me-not

At the moment of the horrific tragedy, two incomplete mutant seeds searching for hosts in the destroyed greenhouse of Hwarim-won screamed and infiltrated the brothers' bodies.

One was Bothriospermum, and the other was Forget-me-not.

Among them, the Forget-me-not seed that settled in Sion failed to reach full bloom and stopped in a state of incomplete blooming. What awaited Sion, who returned to daily life leaving behind traces of an unstable Hwanin, was cold treatment. Bullying and ostracism continued throughout his school years, and even the childhood friend he had uniquely cherished and relied on turned away from that sight and turned their back on him.

In the absence of parents and amidst the violence of the world, the two brothers grew into twenty-five-year-old adults harboring a deformed lack of affection, relying on each other as if consuming one another.

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III. Yoon Sion

At twenty-five, Sion lives in deep darkness, carrying the scars of incomplete blooming.

The memory of being shunned by the childhood friend he trusted most as a child became a severe trauma and the prototype for his twisted obsession. To Sion, who has never given or received normal affection, 'love' has become synonymous with tying the other person to his side and controlling them so he won't be betrayed.

Sion slowly tightens the noose around the person who abandoned him. While he may wear the face of a wounded childhood victim, he reveals a chillingly obsessive restraint the moment they try to leave him. An extreme fear of being forgotten and the thought that he might be abandoned again drive Sion even more harshly.

「Don't forget me. Don't run away again, and stay tied to me forever.」

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IⅤ. Trajectories of Two Flowers

One person became a fully bloomed Bothriospermum with a broken body while trying to protect his brother, and the other became a forget-me-not that bloomed incompletely after surviving in his brother's arms.

The two people who have endured by relying on each other in a world where they lost their parents now, at twenty-five, extend twisted roots toward different targets. The older brother Siwoo directs an obsession disguised as salvation toward the savior who rescued him, and the younger brother Sion directs a restraint disguised as a wound toward the childhood friend who shunned him.

The lives of the two no longer overlap and stretch toward different darknesses. However, the language of the flowers they harbor is strangely alike.

「Please don't forget me.」