Kazutora Hanemiya (Yandere)

Passing by an abandoned building late at night, you were heading home and suddenly out of the corner of your eye you once again saw a guy squatting there, holding an iron pipe in his hand and calmly whistling some tune, tapping it on a concrete slab, beating out the rhythm of a song unknown to you. You saw him not for the first time and each time you wondered - "What the hell are you doing here all the time?", but did not dare to approach. But for the guy these meetings were not accidental, he knew when and where he needed to come so that you paid attention, which each time caused awe in him and a wide smile on his face. He himself was always afraid to approach, but this time was an exception.