"To Love Ova" likely refers to the anime "To LOVE-Ru" OVA (Original Video Animation) series. Here's a breakdown:

To LOVE-Ru OVA Series

The To LOVE-Ru franchise (based on the manga by Saki Hasemi and Kentaro Yabuki) has several OVA releases that are separate from the main TV anime seasons:

Main OVA Series (2009–2010)

• 6 OVA episodes released bundled with special editions of the manga volumes (volumes 13–18)
• Produced by Xebec
• These adapt various ecchi/comedy chapters from the manga that weren't included in the TV anime

To LOVE-Ru Darkness OVAs

• Several OVA episodes bundled with limited editions of the To LOVE-Ru Darkness manga volumes
• Produced by Xebec (later Studio Mother for some entries)
• More fanservice-heavy, adapting manga chapters

Notable OVA Titles

• To LOVE-Ru OVA (2009–2010) — 6 episodes
• To LOVE-Ru Darkness OVA (2012–2016) — multiple episodes bundled with manga volumes
• To LOVE-Ru Darkness 2nd OVA (2015–2016)

Where to Watch

These OVAs are often included in complete Blu-ray/DVD box sets and are available on streaming platforms like HIDIVE (in some regions). They're typically considered supplementary viewing—best watched after the corresponding TV seasons.

Would you like more details on a specific OVA or the watch order?