Why Was Eren Mothered By His Foster Family In Attack On Titan?

I'm adopted by my parents. They are very nice to me—so nice that they keep praying for my health and happiness before my bedtime every night. Later on, Mom is pregnant with a baby. I hide under my blanket and spend the night crying. Then, I secretly pack the tiny suitcase I've brought with me. But my parents don't send me away. Instead, they treat me even nicer. On the day my little sister, Freya Walker, gets born, Mom takes my hand and pats me gently on the head. "You're an older brother now. That's why you have a little sister to be with you." Dad lifts me over his head while spinning me in circles happily. "You really are our lucky charm, Ash! You'll always be our beloved darling!" Finally, I don't have to keep worrying about getting kicked out. From that day onward, I really think that I've become a part of the family. That is, until Freya smashes my favorite toy car model one day. I'm so angry that I smack her on the spot. She stumbles away from me, soon plopping to the floor. At first, she's stunned for a few moments, only to start bawling immediately after. Mom loses her mind instantly. She shoves me away before scooping Freya into her arms and keep asking her if she's hurt. Dad rushes over and starts strangling me immediately with frighteningly bloodshot eyes. "We've kept you around for so many years, and yet you have the gall to bully Freya? Believe me when I say I'm definitely sending you back to—"

I struggle with all my might, but Dad restrains me, and Mom breaks my limbs. Then, my sister seals me into the concrete. "Concrete is only brought to life with an actual person sealed inside. It looks so much more defined! It's not like you'll die after being sealed in there for a few days. How can you be so insensible?" The pain of having my limbs broken and my oxygen being cut off leads to me dying within that block of concrete. My body rots and festers inside, but my soul sticks around to watch how my parents dote on their adoptive child. They seem to be happy without me. Finally, I lose all hope in them. But when the liquid from my body seeps out of the concrete, they all lose their minds.

Of all the pups in the clan, my parents only loved my brother and sister, but not me. When the fire broke in the pack, they hurried into the flames to save their pups, but only took my brother and sister. Left behind, I suffered facial burns and my wolf grew extremely weak. From then on, I lost interest in fighting for their love. Whoever wanted them, could have them. After all, I was already dying. But I did not anticipate their regret. They held my thin frail body and begged: “Could you throw a little tantrum at us again… just once more?”

After being missing for eighteen years, I was finally found by my wealthy birth parents. The impostor—the young man who had taken my place all this time—dropped to his knees, sobbing. "Goodbye, Mom and Dad. Thank you for raising me. Now that Jason is back, this family doesn't need me anymore." My parents hugged him with heartbreaking tenderness. "Don't be ridiculous," they said. "You're our only real son." Even my fiancée confessed her love to him. "I don't care who you really are. You're the only one I love." They all orbited around him, like planets around the sun. When I was nearly killed in a car accident, they were too busy throwing a birthday party for his dog. So I packed my things in silence. Without a word, I accepted an invitation from the space agency to join a five-year satellite research mission in complete isolation. Yet after I left, it was like the whole family lost their minds. They scoured the entire country, desperate to find any trace of me.

I married my vampire husband ten years ago and gave him a half-blood heir, abandoning my career as a painter to become a full-time mother. Fortunately, my son inherited my talent. At just six years old, he held his first solo art exhibition, inspired by the theme "My Mother." But he never let me attend, and he never let me see his paintings. My husband said my presence would make Luke nervous---that I should stay home and do the housework as a good wife and mother, and wait for them to come back. I told myself he was just young and didn't know better, that he was only pushing back against my discipline, not truly rejecting me. Until the day I snuck into the gallery wearing a surgical mask pulled low. In the center of the crowd, my husband held our son's hand while tenderly pulling a woman in a red dress into his arms. He turned to the guests and announced: "This is Luke's mother---my wife." The three of them stood together, beaming with perfect happiness. And I---the one who'd stayed up all night setting up this exhibition---stood before the paintings while not a single person recognized me. That was when I finally understood. My seemingly gentle, caring vampire husband had long ago given our son a replacement mother. And I was nothing more than the human nanny who'd served her purpose by producing an heir.

My wife, Elena Shaw, brought home a baby girl and told me she was the orphaned daughter of a distant cousin. She asked me to raise her as my own. However, I knew the truth — the girl’s biological father was the man who killed my father. I wanted to throw her out. Then, Elena showed me a single photograph. The moment I saw it, I accepted the child without another word. For twelve years, I washed her clothes, cooked her meals and sent her to an elite private school. I never scolded her, even when she pointed at me and called me a pathetic coward. Our relatives all said that I had lost my mind. Then, on her thirteenth birthday, Elena asked me to sign over my shares of the company. My mother fell to her knees and begged me not to sign, but I simply smiled and took out that same photograph. She looked at it only once before pressing her thumbprint onto the document herself. The entire room erupted into chaos.