Similarities:
Isolation: Both Nozomi and Jina lead lives marked by isolation and a sense of detachment from those around them

Workplace Dynamics: Their workplaces play a significant role in their lives, offering a contrast between their professional efficiency and personal struggles

Personal Growth: Both characters experience moments of personal growth and introspection, often triggered by interactions with others

These films beautifully capture the internal struggles of their protagonists and their journeys towards finding fulfillment and connection.

Basically, it's similar story. Start with school time, know each other, and then the story begins. If you want to find more easy to watch, just go with Hanamizuki first.