Perfect! Sayori achievement in Doki Doki Literature Club Plus!

If you go to the “Metaverse” fake desktop (by exiting DDLC in-game, NOT exiting to your xbox dashboard), you can open a folder marked “files”, then a folder marked “game”, then a file marked “poemwords.txt”. This will give you a list of Sayori's, Natsuki's and Yuri's favourite words to use in poems. Exclusively use words from the appropriate list to write a “perfect” poem.

Sayori (alphabetically):
adventure, alone, amazing, awesome,
beauty, bed, bliss, broken,
calm, charm, cheer, childhood, clumsy, color, comfort, cry,
dance, dark, daydream, dazzle, death, defeat, depression,
embrace, empty, excitement, extraordinary,
family, fear, feather, fireflies, fireworks, flower, flying, forgive, friends, fun,
grief,
happiness, heart, holiday, hope, hopeless, hurt,
joy,
laugh, lazy, loud, love, lucky,
marriage, memories, misery, misfortune, music,
nature,
ocean,
pain, party, passion, peaceful, play, prayer, precious, promise,
rainbow, raincloud, romance, rose,
sadness, scars, shame, silly, sing, smile, sparkle, special, sunny, sunset, sweet,
tears, together, tragedy, treasure,
unrequited,
vacation,
warm, wonderful

Here is a more detailed guide that I did not make: