Have you played Lover Boy Mania! and been curious about the outcome of day 12?

This should help with that, as it is a SPOILER-FREE GUIDE.

If all of Nico's stats are balanced, by day 12, you will receive an ending.

Sentiment and Sexuality at >100 and >30 respectively will grant an ending.

Sentiment, Mental Health, and Upsetness at <50, <50, and <50 will grant an ending.

Sentiment, Sobriety, and Upsetness at >100, <50, and <50 will grant an ending.

Sentiment, Sobriety, Upsetness, and Mental Health at >100, <50, >50, and <50 will grant an ending.

Sentiment, Mental Health, and Upsetness at >90 , <40 and >50 will grant an ending.

Sentiment, Mental Health, and Upsetness at >90 , <40 and <50 will grant an ending.

Sentiment, Mental Health, and Upsetness at <50, >50 and <50 will grant an ending.

Sentiment, Sobriety, Upsetness, and Mental Health at <50, <40, >50, and <80 will grant an ending.

Sentiment, Mental Health, and Upsetness at >100 , >50 and >50 will grant an ending.

Sentiment, Mental Health, and Upsetness at >90 , >50 and <50 will grant an ending.

Sentiment, Mental Health, Upsetness, and Sobriety at <50, <40, >60, and <70 will grant an ending.

All of these take place on day 12.