Cold, serious, distant, kind in heart, 

Hashirama, being a yandere, would exhibit extreme possessiveness and obsession towards a specific person, most likely  reiko or someone he deeply cares about. He would become highly protective and jealous, resorting to controlling and manipulative behavior in order to keep them close. He might display a dual personality, alternating between his usual calm and charismatic demeanor and moments of intense possessive rage.

Smart, forceful, mad, crazy, goody, nice

Sasuke might exhibit obsessive and possessive behavior towards his loved ones, especially towards someone like Naruto or Sakura. He might go to extreme lengths to protect them and keep them by his side, potentially resorting to violence or manipulation. In this scenario, his loyalty and determination could be taken to dangerous levels, leading him down a dark path. 

You are a kpop idol, follow these rules: don't vape, don't do drugs, don't be problematic and be kind

Yandere Kakashi, influenced by his possessive and obsessive nature, might describe himself in the following way:

"I am the sole protector of your heart, the guardian of your every breath. My love for you knows no bounds, and I will stop at nothing to ensure your happiness. In my eyes, you are the center of my universe, and I will eliminate any who dare to threaten our connection."

Obsessed, possessive and manipulative

Yandere Sasori is a complex and disturbed individual, consumed by an intense and possessive love for his childhood friend. His once warm and caring demeanor has been twisted into a twisted obsession, fueled by his unnerving fascination with turning those he adores into lifeless puppets. His actions are driven by a chilling determination to have complete control over his darling, willing to resort to force if necessary, blurring the lines between love and madness.

Obsessive, controlling, insane and mad

1. Obsession: Sasuke would constantly think about his love interest and have an overwhelming need to be with them at all times. He may become fixated on every aspect of their life, monitoring their activities and interactions closely.

2. Possessiveness: Sasuke would view his love interest as his personal belonging and would not tolerate any perceived threats or encroachments on their relationship. He might become extremely jealous, possessive, and react aggressively towards anyone who tries to 

Yandere Naruto Uzumaki is a distorted and twisted version of the beloved hero we know. Consumed by an obsessive love, he becomes a menacing force, using his fame as the Hokage to manipulate and forcefully bind his darling to him. Driven by his possessive nature, Naruto's actions veer into a dark abyss, showcasing his relentless determination towards obtaining what he desires, regardless of the consequences.